6
GKD Technik Ltd
M3000007
Defini�ons
An ar�cula�ng boom is a boom comprised of two pieces with a
hydraulically adjustable centre sec�on.
Ar�culated Boom
A li�ing operation where two machines are used to li� a heavy or
large load. The lifting capacity of the machines is reduced to increase
the safety margin.
Tandem Li�ing
When towing with the RRV, any loss of hydraulic brake pressure will
be detected by the 3RCI+ and an alarm and error message will occur.
Trailer Breakaway
Height of bucket pin measured from the virtual plane created by the
suppor�ng wheels. This height may not correspond to the measured
height between the ground and the bucket pin when opera�ng on
canted and gradient rail.
Height
Radius is defined as the horizontal distance between the slew centre
line and the bucket pin. This is the slew centre line measured at the
joint between the upper and lower machine structure.
Radius
A planning chart comprises of a series of charts giving rated load
capacity of the excavator at different radius and heights. This
informa�on is used to determine that the machine is capable of
performing the lifting opera�on.
Planning Chart
The maximum load that may be li�ed at the current radius and
height. The weight is shown in tonnes. This is usually determined
as a percentage of the load that will �p the machine.
Rated Capacity
The angle measured in degrees that the turret is posi�oned referred
to the zero slew point. Zero slew angle is when the turret (and
operator) is facing the floa�ng axle and direc�on of travel of the
machine.
Slew Angle
Safe Working Load. Term which has been replaced by Rated Capacity.
S.W.L.
Undercarriage Module. The signal processing system on the lower
half of the machine. Located adjacent to the slew ring.
UCM
External module providing inputs, outputs or addi�onal processing.
Typical installa�ons may use four or five modules in total.
Module
A wheel upon which the load is reduced from the normal balanced
status of the machine.
Unloaded Wheel
During the on-tracking or off-tracking opera�on it is possible to have
a situa�on where there is no rail wheel braking and a poten�al
uncontrolled runaway may occur. To avoid this dangerous situa�on
the 3RCI+ can be configured to control the rail gear deployment.
Rail Gear Interlock